Xmachine f for drying and cooling grain and other substances



(We Model.)

A S. E. WORRELL.

MACHINE FOR DRYING AND COOLING GRAIN AND OTHER SUBSTANCES.

Patented Apr. 25, 1882.

[7 we i0). 54? 4 7W ,nrrnn in-Arcs ollnliilflln'ii E; WORRELL,=@F HANNIBAL, MlSSOURI.

MACHINE FOR manna Ann cooune own Aim o'nnn SUBSTANCES.

SFEGIFIGATIUN forming" part: of Letters .mienc vno. comic dated A ril 25, 1on2.

Application filed November 4, 18:51. (No model.)

To all whom it may concern Bo ll; known that I. STANLEY E. WQRRELL, 2i citizen of the United States, residing at Hannibal, in the county of Marion and Stalc of Missouri, have invented a new and useful Machine, of which the following is a'opccliicav tion.

Illyim'cniion relates ioienprovemenisin machines for lrying and cooling groin and likc ocbsmnccsin one and we smncoporation. All dryingmachines for thin purpose, as constrnotcil and operated he1'etolbrc,rlelii'er the nictoriallocing icicd in a warm or hot conlliiion, which is very objectionable, or require aiiililliomll or separate machinery to rchnnrilo 'cmi cool it for it cannot be stored in bulk nniaii thoroughly cooled, on acconnl; of the (inn v gar oi spoiling by heating, oml thereby hecoming musty. Tho ohjccj ofimy, inrcnlion is to overcome the expense and trouble of this aiidibionnl machinery and labor'liore'tofore rconircii for cooling the grain or like snbstancc 1 and opcrntion in tho following poinits: Firm,

my inclined. revolving social coco exlcnils no yoncl the inrnzico for cooling; purposes; sceorni none of the bcorings and journals oi my device are exposed to the heated products of combustion, asa nn'nzher no in the invention cited, which must niakc lubrication of these parts (lilficnlt, thereby increasing the friction and causing tli'o rapid destruction of tho chine;i;l1imi, my invcniioinhcinglcsscompliac ed, is easier to operate and not no liable to getont of repair; and, fourth, the Gibbs and Borwick prinoiplo oi drying difi ers from mine in the fact that -thcy bring the material cpcrmed upon into immediate contact with the heated gnoco of combustion, thcrchy tainting and spoiling it for food if icis groin, seeds, homing or other substance of an edible nninro. In my "improvement the cnrrcnt of air nneol for thin purpose io only heated by contact with hot metal surfaces. Consequently it contains no impurities to injure the dried products. Their device is cvidentlyintendcrl for drying cement; sewage piccipitotcs, clay, and like cticliy inattcro. Mine is not applicable to maicrlnls of that nature, no]; is it claimed to be.

My invention consists of the apparatus lacroinai'ter described, and illuslmtcii in tho no compzinying drawings, in which. arrangement the materials to be dried and cooled nrc conned to pnsn through an inclincd revolving metal cylindrical case, the upper part cinhich is surrounded by a fnrnacc. To the inside cal-face of this case are eccnreli the troughs or cops to lift and agitate lilo substance being operated upon, and a cnrrcnb oi air is drawn or forced through ii to complete the operation.

'7 in the accompanying drawings, in which similar letters of reference indicate like ports,

tho groorc G C. Motion is transmitted to it.

through ilic l'riclion-wllccls B B by georo or pnllcyo in; .1, orby common or norm goofing directly aiiaohcdto the cnlciiie of this cylinder A A. The lower cod is supported upon friction-wheels that can be roiscrl or lowered, or by a spiiiei' jcnrnaleol into 'iho screw E for ilnc calno purpose. The niciolonp'g or trooghn 1' i I l crc'occnrccl to iiiic inside surface of this ccsc A A; coil I. do not limit 'mESElf to the size or number of them, but pol; in what; are rcqoired. The fiat loose ring 0 0 covers the end of the cylinder or case is raisc or loworeil, preventing the entrance oi too much cold air into the furnace. The suctioncpout D is nlstfinrronndcd by o ring attachcil to the end of ilfccylinclor for the ammo purpose. The feeding-hopper E opens into the motion-Epcot. F is the deiircryspout. The products oi'combastion in the furnace K csczino the stool; L.

The On -oration of my invention is i=8 follows:

Aiiortlac i'nrnocc K lino become coliicicntly 0 opening: left in the furnace K when the iowcr N hot, motion is applied to the cylindrical case A A- through the friction-wheels B B, and suction created in the spout D, causing a current of air to pass entirely through the case from the lower to the upper end. The grain or other material to be dried and cooled is con tinuously fed through the hopper E and spent D into then'pper end of the case A, which is inclosed by the furnace K, where it becomes gradually heated by coming into contact with the hot metal surface. The drying process is now accelerated by the cups ortroughs I I I I, which carry it up and slowly empty themselves as the case revolves, thereby bringing every part of'the material operated upon into fre quent contact with the current of air heated by contact with the inside surface of the case A, also thoroughly mixing it and preventing it becoming scorched. Owing to the rotary motion and inclination of the cylinder, the drying material is constantly moving along toward the lower or delivery end. As soon as it has passed through that part inclosed bythc furnace the cooling part of the process is commenced by the cool metal surface, assisted and completed by the current of air which here has either a natural or'an artificially-produced cold temperature. Finally, the material is discharged into the spout Fina dry and cool condition, fit for immediate storage in bulk, packa ges, or consumption. The delivery end of the cylinder or case is raised or lowered by the screw IT, or by other means hereinhefore mentioned, to decrease or increase the speed of the process. To cool naturally-heated grain, seeds, and material of a like character with this invention, the operation is the same as above, except the heat in the furnace is omitted.

I'do not limit myself as to what shall be the exact portion of the case surrounded by the furnace or heating'chamber, but vary this ac.

cording to the requirement of the material op erated upon neither-do I restrict myself to an exact cylindrical form of the case A A. It may be made oetagonal,,fiuted,-or of similar shape, if deemed best. "\Iy apparatus can be constructed so as to utilize the waste heat from boiler and other furnaces, and instead of drawing the current of air through the spout I), it may be forced into the lower end of the case A A without departing from the principle of my invention.

My improvement hereinbet'ore described is adaptable for drying and cooling damp grain, seeds, berries, fruit, brewers grains, and other substanceswhich are not of a sticky nature. It is also applicable to the cooling of grain, seeds, and other agricultural products which have spontaneously. heated from heing'stored in bulk while containing a little moisture.

Having fully described my invention, what I desire to claim and secure by Letters Patent is-- 1. In a drying and cooling device, the com bination of the inclined revolving metal cylinder or case containing cups or troughs and partly inclosed or surrounded by a t'tiruaee or heating-chamber, with the means of producing a current of air, and appliances for varying the inclination of said cylinder and rotat ing it, substantially as described.

2. In a drying and cooling device, the coin-- bination of the inclined revolving metal cylinder or case containing cups ortroughs and partly inclosed or surrounded by a furnace or hcatingchaniber, and appliances for varying the inclination of said cylindcrand rotating it, substantially as described.

s'rAntnr in. woaREL-L.

Witnesses:

L11. ANDERSON,

E. ll. Nrcnots. 

